\documentclass{article}

\usepackage{pgfplots}
\pgfplotsset{compat=1.6}

\usepgfplotslibrary{patchplots}


\begin{document}

% this test revealed a problem with cdata vertices.

\begin{tikzpicture}
%\tracingcommands=2\tracingmacros=2
 \begin{axis}
  \addplot3[surf,
            %fill=white,
            samples=10,
            samples y=10,
            domain=-1:1,
            y domain=0:360,
		%	restrict expr to domain={x + y}{0:99999},
	patch type=biquadratic, patch type sampling, shader=faceted interp,
            z buffer=sort]
            ( {cosh(x)*cos(y)}, {cosh(x)*sin(y)}, {sinh(x)} );
 \end{axis}
\end{tikzpicture}

\begin{tikzpicture}
%\tracingcommands=2\tracingmacros=2
 \begin{axis}
  \addplot3[surf,
            %fill=white,
            samples=10,
            samples y=10,
            domain=-1:1,
            y domain=0:360,
		%	restrict expr to domain={x + y}{0:99999},
	patch type=triangle quadr, patch type sampling, shader=faceted interp,
            z buffer=sort]
            ( {cosh(x)*cos(y)}, {cosh(x)*sin(y)}, {sinh(x)} );
 \end{axis}
\end{tikzpicture}

\end{document}
